208518920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:283

約数の個数: 128

約数和(自身を含む): 525312000

約数和(自身を除く): 316793080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 79, 92, 95, 115, 151, 152, 158, 184, 190, 230, 302, 316, 380, 395, 437, 460, 604, 632, 755, 760, 790, 874, 920, 1208, 1501, 1510, 1580, 1748, 1817, 2185, 2869, 3002, 3020, 3160, 3473, 3496, 3634, 4370, 5738, 6004, 6040, 6946, 7268, 7505, 8740, 9085, 11476, 11929, 12008, 13892, 14345, 14536, 15010, 17365, 17480, 18170, 22952, 23858, 27784, 28690, 30020, 34523, 34730, 36340, 47716, 57380, 59645, 60040, 65987, 69046, 69460, 72680, 95432, 114760, 119290, 131974, 138092, 138920, 172615, 226651, 238580, 263948, 274367, 276184, 329935, 345230, 453302, 477160, 527896, 548734, 659870, 690460, 906604, 1097468, 1133255, 1319740, 1371835, 1380920, 1813208, 2194936, 2266510, 2639480, 2743670, 4533020, 5212973, 5487340, 9066040, 10425946, 10974680, 20851892, 26064865, 41703784, 52129730, 104259460, 208518920]

約数ペア:

[(1, 208518920), (2, 104259460), (4, 52129730), (5, 41703784), (8, 26064865), (10, 20851892), (19, 10974680), (20, 10425946), (23, 9066040), (38, 5487340), (40, 5212973), (46, 4533020), (76, 2743670), (79, 2639480), (92, 2266510), (95, 2194936), (115, 1813208), (151, 1380920), (152, 1371835), (158, 1319740), (184, 1133255), (190, 1097468), (230, 906604), (302, 690460), (316, 659870), (380, 548734), (395, 527896), (437, 477160), (460, 453302), (604, 345230), (632, 329935), (755, 276184), (760, 274367), (790, 263948), (874, 238580), (920, 226651), (1208, 172615), (1501, 138920), (1510, 138092), (1580, 131974), (1748, 119290), (1817, 114760), (2185, 95432), (2869, 72680), (3002, 69460), (3020, 69046), (3160, 65987), (3473, 60040), (3496, 59645), (3634, 57380), (4370, 47716), (5738, 36340), (6004, 34730), (6040, 34523), (6946, 30020), (7268, 28690), (7505, 27784), (8740, 23858), (9085, 22952), (11476, 18170), (11929, 17480), (12008, 17365), (13892, 15010), (14345, 14536)]